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High sequence similarity between a ribonuclease fromginsengcalluses and fungus-elicited proteins from parsley indicates that intracellular pathogenesis-related proteins are ribonucleases

✍ Scribed by Gennady P. Moiseyev; Jaap J. Beintema; Larisa I. Fedoreyeva; Gennady I. Yakovlev


Publisher
Springer-Verlag
Year
1994
Tongue
English
Weight
280 KB
Volume
193
Category
Article
ISSN
0032-0935

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✦ Synopsis


A ribonuclease from a callus cell culture of Panax ginseng C.A. Mey strain R1 was isolated. A pure protein with an apparent molecular mass of 18 kDa was obtained. The N-terminal sequences of the protein and of the C-terminal CNBr peptide were determined. No homology with other ribonucleases was found, but there was 60-70% sequence identity with two intracellular pathogenesis-related (IPR) proteins from parsley, indicating that not only these two proteins, but also homologous IPR proteins identified in other plant species are ribonucleases.